Thanks. I actually read The Cathedral & The Bazaar shortly after ESR published it, and have read it several times since. I'm really not sure how the "many eyes" notion got associated with Torvalds in my head.

Precisely. It's not that the hypothesis is wrong, it's just that it doesn't apply.

This doesn't reduce the value of open source for security software, because while it gives both white hats and black hats a great deal of help with finding vulnerabilities, the nature of security research means that the white hat side benefits more. Open source software, developed in public, also makes it more difficult for the likes of the NSA to insert back doors, because it's not just a matter of paying (or threatening) some company to insert the compromise. That's not to say it can't be done. I'm quite certain it is done. But it's harder, and it's more likely to be discovered and removed.

This. The problem with porn is that it presents an extremely skewed view of sex, which can seriously interfere with a normal, healthy sex life. Most people don't look like porn stars, and many -- especially women -- have no interest in doing many of the acts commonly portrayed. Anal sex, for example, is a porn staple but something relatively few women have any interest in. Porn also presents sex as a casual and purely physical thing for the most part, which leads people -- especially but not exclusively young people -- to see casual hookups as a good thing, while in reality most people who pursue a lifestyle of casual sex find it to be unfulfilling. And then there are the dangers of unprotected sex, which porn also portrays and thereby encourages.

I've read stories of men who found that they had to close their eyes and envision their favorite porn star in order to climax with their girlfriend or wife. That is really, really sad, because it means that they're missing out on the deepest part of the sexual experience, the bonding with a life partner.

In a nutshell, porn can and often does ruin real sex, replacing it with a shallow imitation.

Obviously, some waste heat will always be produced. Internal combustion engines, however, waste 75% of the input energy as heat.

Some produce much more than others, though.

Really? Wow. I've had that attribution wrong for years. Thanks.

Or disable them. They're still on the /system partition then, but can't run and their icons don't show up.

Starting with 5.0 there's another potential improvement: http://www.androidauthority.co...

There are lots of ways to generate power that don't involve burning anything.

Of course. And there are also transmission losses. However, large plants have significantly higher efficiencies than small engines. Net, EVs powered by oil-fired power plants use less oil per mile traveled than gasoline engines, by a large margin, even when you include electric cabin heat.

Large scale solar power plants don't usually use solar panels. They are of the Concentrated Solar Power variety. The environmental impact of producing the large number of mirrors and motorized mounts required for these plants is pretty small.